US20080189982A1 - Shoe spring sole insert - Google Patents

Shoe spring sole insert Download PDF

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Publication number
US20080189982A1
US20080189982A1 US12/069,096 US6909608A US2008189982A1 US 20080189982 A1 US20080189982 A1 US 20080189982A1 US 6909608 A US6909608 A US 6909608A US 2008189982 A1 US2008189982 A1 US 2008189982A1
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United States
Prior art keywords
shoe
sole
spring
wave
encapsulating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/069,096
Inventor
Andrew B. Krafsur
Original Assignee
Krafsur Andrew B
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US90060707P priority Critical
Application filed by Krafsur Andrew B filed Critical Krafsur Andrew B
Priority to US12/069,096 priority patent/US20080189982A1/en
Publication of US20080189982A1 publication Critical patent/US20080189982A1/en
Application status is Abandoned legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B21/00Heels; Top-pieces, e.g. high heels, heel distinct from the sole, high heels monolithic with the sole
    • A43B21/24Heels; Top-pieces, e.g. high heels, heel distinct from the sole, high heels monolithic with the sole characterised by the constructive form
    • A43B21/26Resilient heels
    • A43B21/28Pneumatic heels filled with a compressible fluid, e.g. air, gas
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole and heel units
    • A43B13/14Soles; Sole and heel units characterised by the constructive form
    • A43B13/18Resilient soles
    • A43B13/20Pneumatic soles filled with a compressible fluid, e.g. air, gas
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00Footwear with health or hygienic arrangements
    • A43B7/14Footwear with foot-supporting parts
    • A43B7/1405Footwear with foot-supporting parts provided with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415Footwear with foot-supporting parts provided with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/1425Footwear with foot-supporting parts provided with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the ball of the foot, i.e. the joint between the first metatarsal and first phalange
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00Footwear with health or hygienic arrangements
    • A43B7/14Footwear with foot-supporting parts
    • A43B7/1405Footwear with foot-supporting parts provided with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415Footwear with foot-supporting parts provided with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/1435Footwear with foot-supporting parts provided with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the joint between the fifth phalange and the fifth metatarsal bone
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00Footwear with health or hygienic arrangements
    • A43B7/14Footwear with foot-supporting parts
    • A43B7/1405Footwear with foot-supporting parts provided with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415Footwear with foot-supporting parts provided with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/144Footwear with foot-supporting parts provided with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the heel, i.e. the calcaneus bone

Abstract

A spring cushioned shoe insert is disclosed. The sole insert includes an insert that has a first wave spring disposed within a vacuity of the heel region and a second wave spring disposed within a vacuity of the toe region. The springs are, e.g., wave springs that extend to the upper and lower boundaries of the spring enclosure. In one embodiment of the present invention, a fluid flow passageway facilitates the movement of air from the heel to toe regions of the insert. In a second embodiment, the wave springs are fully contained within encapsulating enclosures.

Description

    PRIORITY CLAIM
  • This application claims the benefit of priority of U.S. Provisional Application No. 60/900,607, filed Feb. 9, 2007.
  • BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • This invention relates to an improvement to the existing technology surrounding wave spring cushioned shoes. Specifically, prior wave spring cushioned shoes, as disclosed in U.S. Pat. Nos. 6,282,814 and 6,665,957, contained a fixed set of wave springs of predetermined size and strength within the sole of the shoe. The present invention allows for an insert containing the wave springs to be inserted into the shoe by the ultimate user.
  • 2. Description of the Prior Art
  • One of the most basic laws of physics is that for ever action there is an equal and opposite reaction. In terms of shoes and running, this means that for every step down (“foot strike”), there is an equal and opposite force exerted back towards the shoe and ultimately the person wearing the shoe. If life were but one step perhaps the forces involved would be inconsequential. But life, like running, is not a single step but a repetition of many steps. The forces that must be absorbed by a shoe and the wearer of the shoe over the course of a single event are tremendous and have spurred on countless inventions aimed at cushioning shoe impact forces.
  • U.S. Pat. No. 6,282,814 (the '814 patent) discloses a spring cushioned shoe wherein the springs are sealed within vacuities formed in the soles of the shoe. The '814 patent utilizes wave springs which are substantially identical to the multi turn compression springs with distinct crests and trough described by Greenhill in U.S. Pat. No. 4,901,987. The wave springs of the current invention are identical to those of the '814 patent, having circular flat shim ends, wave crest and wave trough with prescribed periodicity. The compression wave springs of the preferred embodiment of this invention could be replaced with multi turn wave springs which do not employ flat shim ends but rather rely on the use of flat end plates in combination with ordinary wave springs. While the technology of the '814 patent is effective in reducing impact upon a user's foot, such technology does not allow for easy replacement of the wave springs should a malfunction occur nor does it permit the customization of the wave springs themselves to an individual's body type or running style.
  • Too much air within the spring containing shoe sole vacuities, can interfere with the performance of the springs. There are two basic ways to insure that air does not interfere with spring performance. As shown in U.S. Pat. No. 6,665,957 (the '957 patent), a fluid flow passageway can be utilized to facilitate the movement of air away form the springs during a foot strike. As disclosed more recently by this inventor in U.S. Provisional Application No. 60/897,605, a fully encapsulating spring enclosure can also be used. As with the fluid flow passageway concept, the fluid within the encapsulating spring enclosure can be any substance that flows such as a gas or a liquid. The volume of fluid within the encapsulating spring enclosure is sufficient to allow for enhanced spring performance but not so great as to interfere with such performance. The encapsulating spring enclosure is sealed using any conventional means such as heat and glue so as to prevent air from the inside of such enclosure from escaping to the outside or air from the outside from being introduced into the enclosure (“hermetically sealed”)
  • SUMMARY OF THE INVENTION
  • It is the object of the present invention to provide for a shoe insert that contains the wave springs. It is a further object of the present invention to allow for the customization of the wave spring insert to an individual's body type or running style.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a side view of the fluid flow passageway containing sole insert.
  • FIG. 2 is a top view of the fluid flow passageway containing sole insert.
  • FIG. 3 is an illustration of the fluid flow passageway containing sole insert as placed into a shoe.
  • FIG. 4 is a top view of the sole insert without fluid flow passageway.
  • FIG. 5 is a top view of the shoe insert without fluid flow passageway.
  • FIG. 6 is an illustration of the sole insert without fluid flow passageway as placed into a shoe.
  • DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • The detailed embodiments of the present invention are disclosed herein. It should be understood, however, that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms. Therefore, the details disclosed herein are not to be interpreted as limiting, but merely as the basis for the claims and as a basis for teaching one skilled in the art how to make and/or use the invention.
  • FIGS. 1 through 3 depict one embodiment of the present invention utilizing the fluid flow passageway to facilitate the movement of air within the sole insert. FIG. 1 depicts a side view of the sole insert [4] of the present invention showing the wave spring [1&2], the fluid flow passageway [3]. FIG. 2 illustrates a top view of the present invention again showing the wave springs [1&2] and fluid flow passageway [3]. Although both in this embodiment as well as the second embodiment described below, two springs [2] are shown in the toe region of the sole insert [4] and one spring [1] depicted in the heel region, it should be appreciated and understood that any number of springs as well as any configuration of such springs could perform just as effectively. FIG. 3 illustrates the placement of the sole insert [4] within a shoe [5] and also again illustrates the fluid flow passageway [3], and the wave springs [1&2}.
  • FIGS. 4-6 depict a second embodiment of the present invention. Here, the fluid flow passageway [3] shown in FIGS. 1-3 has been replaced by wave springs [6&7] fully contained within encapsulating spring enclosures [8&9]. FIG. 4 depicts a side view of the sole insert [10] with the wave springs [6&7], and encapsulating enclosures as [8&9]. FIG. 5 shows a top view of the sole insert [10] and FIG. 6 illustrates the placed of the sole insert [10] within the shoe [11].
  • While the preferred embodiments have been shown and described, it will be understood that there is no intent to limit the invention by such disclosure, but rather, is intended to cover all modifications and alternate constructions falling within the spirit and scope of the invention as defined in the appended claims.

Claims (19)

1. A sole insert assembly for an article of footwear, the sole insert assembly having a heel and toe region.
2. The sole insert assembly of claim 1 wherein the sole insert assembly comprises:
a first wave spring disposed within the heel region;
a second wave spring disposed within the toe region, and
a fluid flow passageway between the first and second wave springs.
3. A shoe comprising a shoe sole including outer sole, an inner sole, and a mid sole disposed above the outer sole and inner sole; the middle sole defining a vacuity.
4. The shoe of claim 3 further comprising an encapsulating spring enclosure disposed within such vacuity.
5. The shoe of claim 4 wherein a first wave spring is disposed within the heel region of the encapsulating spring enclosure.
6. The shoe of claim 5 wherein a second wave spring is disposed within the toe region of the encapsulating spring enclosure.
7. The shoe of claim 6 further comprising a fluid flow passageway between the first and second wave springs.
8. The shoe of claim 5 wherein the spring is a crest to crest multi-turn spring.
9. The shoe of claim 5 wherein the encapsulating spring enclosure is hermetically sealed.
10. The shoe of claim 5 wherein the encapsulating spring enclosure contains air at atmospheric pressure.
11. A shoe comprising a shoe sole including outer sole, an inner sole, and a mid sole disposed above the outer sole and inner sole; the middle sole defining a first vacuity within the heel region and second vacuity within the toe region.
12. The shoe of claim 11 further comprising an encapsulating spring enclosure containing a wave spring, disposed within the heel region vacuity.
13. The shoe of claim 12 wherein the spring is a crest to crest multi-turn spring.
14. The shoe of claim 12 wherein the encapsulating spring enclosure is hermetically sealed.
15. The shoe of claim 12 wherein the encapsulating spring enclosure contains air at atmospheric pressure.
16. A shoe comprising a shoe sole including outer sole, an inner sole, and a mid sole disposed above the outer sole and inner sole; the middle sole defining a first vacuity within the heel region and second vacuity within the toe region further comprising an encapsulating spring enclosure containing a wave spring, disposed within the heel and toe region vacuities.
17. The shoe of claim 16 wherein the spring is a crest to crest multi-turn spring.
18. The shoe of claim 16 wherein the encapsulating spring enclosure is hermetically sealed.
19. The shoe of claim 16 wherein the encapsulating spring enclosure contains air at atmospheric pressure.
US12/069,096 2007-02-09 2008-02-07 Shoe spring sole insert Abandoned US20080189982A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US90060707P true 2007-02-09 2007-02-09
US12/069,096 US20080189982A1 (en) 2007-02-09 2008-02-07 Shoe spring sole insert

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/069,096 US20080189982A1 (en) 2007-02-09 2008-02-07 Shoe spring sole insert

Publications (1)

Publication Number Publication Date
US20080189982A1 true US20080189982A1 (en) 2008-08-14

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US12/069,096 Abandoned US20080189982A1 (en) 2007-02-09 2008-02-07 Shoe spring sole insert

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090293309A1 (en) * 2008-05-29 2009-12-03 K-Swiss Inc. Interchangeable midsole system
US20140250728A1 (en) * 2013-03-08 2014-09-11 Nike, Inc. Footwear Fluid-Filled Chamber Having Central Tensile Feature
US20160316852A1 (en) * 2015-04-30 2016-11-03 Jing Zhao Heel Suspend Footbed With Pronation Adapting Mechanism
WO2019046485A1 (en) * 2017-08-29 2019-03-07 Spira, Inc. Spring cushioned shoe with encapsulated spring

Citations (68)

* Cited by examiner, † Cited by third party
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US1069001A (en) * 1913-01-14 1913-07-29 William H Guy Cushioned sole and heel for shoes.
US1380869A (en) * 1920-03-26 1921-06-07 Hammond V Hayes Submarine signaling
US1469920A (en) * 1922-09-21 1923-10-09 Dutchak John Spring heel
US1502087A (en) * 1924-02-08 1924-07-22 Bunns Julius Boot or shoe
US1675256A (en) * 1927-07-13 1928-06-26 Ray Shelton Shoe heel
US1942312A (en) * 1932-10-05 1934-01-02 Stephen M Tutoky Shoe heel
US2334719A (en) * 1940-11-22 1943-11-23 Margolin Meyer Resilient middle sole or insole
US2444865A (en) * 1947-07-08 1948-07-06 John P Warrington Spring heel adapter
US2447603A (en) * 1946-09-27 1948-08-24 Ballard F Snyder Shoe
US2535102A (en) * 1945-11-24 1950-12-26 Taylor James Walton Shoe heel
US2668374A (en) * 1951-03-14 1954-02-09 Seigle William Spring cushioning insole
US2669038A (en) * 1951-11-19 1954-02-16 Werth Robert De Shock absorbing shoe heel
US2720041A (en) * 1953-03-31 1955-10-11 Kajtar Kalman Footwear with provision to change the air therein
US3225463A (en) * 1962-10-12 1965-12-28 Charles E Burnham Air ventilated insole
US3702999A (en) * 1971-02-22 1972-11-14 Ivan A Gradisar Partial weight bear warning device
US3791375A (en) * 1971-09-29 1974-02-12 E Pfeiffer Device for sensing and warning of excessive ambulation force
US3822490A (en) * 1973-05-02 1974-07-09 S Murawski Hollow member for shoes
US4267648A (en) * 1979-09-19 1981-05-19 Weisz Vera C Shoe sole with low profile integral spring system
US4446634A (en) * 1982-09-28 1984-05-08 Johnson Paul H Footwear having improved shock absorption
US4458430A (en) * 1981-04-02 1984-07-10 Peterson Lars G B Shoe sole construction
US4492046A (en) * 1983-06-01 1985-01-08 Ghenz Kosova Running shoe
US4592153A (en) * 1984-06-25 1986-06-03 Jacinto Jose Maria Heel construction
US4638575A (en) * 1986-01-13 1987-01-27 Illustrato Vito J Spring heel for shoe and the like
US4715130A (en) * 1985-09-20 1987-12-29 Alessandro Scatena Cushion system for shoes
US4815221A (en) * 1987-02-06 1989-03-28 Reebok International Ltd. Shoe with energy control system
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US5896679A (en) * 1996-08-26 1999-04-27 Baldwin; Phillip Article of footwear
US5916071A (en) * 1998-03-20 1999-06-29 Lee; Yan-Yee Shoe equipped with spring for doing jumping exercise
US6006449A (en) * 1998-01-29 1999-12-28 Precision Products Group, Inc. Footwear having spring assemblies in the soles thereof
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US6079123A (en) * 1998-09-28 2000-06-27 Breeze Technology Self-ventilating insert for footwear
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US6665957B2 (en) * 2000-10-19 2003-12-23 Shoe Spring, Inc. Fluid flow system for spring-cushioned shoe
US6886274B2 (en) * 1999-04-29 2005-05-03 Shoe Spring, Inc. Spring cushioned shoe
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US20050241184A1 (en) * 2003-01-02 2005-11-03 Levert Francis E Shock resistant shoe
US20050247385A1 (en) * 2002-02-08 2005-11-10 Krafsur David S Process for improving fatigue life in spring-cushioned shoes

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1069001A (en) * 1913-01-14 1913-07-29 William H Guy Cushioned sole and heel for shoes.
US1380869A (en) * 1920-03-26 1921-06-07 Hammond V Hayes Submarine signaling
US1469920A (en) * 1922-09-21 1923-10-09 Dutchak John Spring heel
US1502087A (en) * 1924-02-08 1924-07-22 Bunns Julius Boot or shoe
US1675256A (en) * 1927-07-13 1928-06-26 Ray Shelton Shoe heel
US1942312A (en) * 1932-10-05 1934-01-02 Stephen M Tutoky Shoe heel
US2334719A (en) * 1940-11-22 1943-11-23 Margolin Meyer Resilient middle sole or insole
US2535102A (en) * 1945-11-24 1950-12-26 Taylor James Walton Shoe heel
US2447603A (en) * 1946-09-27 1948-08-24 Ballard F Snyder Shoe
US2444865A (en) * 1947-07-08 1948-07-06 John P Warrington Spring heel adapter
US2668374A (en) * 1951-03-14 1954-02-09 Seigle William Spring cushioning insole
US2669038A (en) * 1951-11-19 1954-02-16 Werth Robert De Shock absorbing shoe heel
US2720041A (en) * 1953-03-31 1955-10-11 Kajtar Kalman Footwear with provision to change the air therein
US3225463A (en) * 1962-10-12 1965-12-28 Charles E Burnham Air ventilated insole
US3702999A (en) * 1971-02-22 1972-11-14 Ivan A Gradisar Partial weight bear warning device
US3791375A (en) * 1971-09-29 1974-02-12 E Pfeiffer Device for sensing and warning of excessive ambulation force
US3822490A (en) * 1973-05-02 1974-07-09 S Murawski Hollow member for shoes
US4267648A (en) * 1979-09-19 1981-05-19 Weisz Vera C Shoe sole with low profile integral spring system
US4458430A (en) * 1981-04-02 1984-07-10 Peterson Lars G B Shoe sole construction
US4446634A (en) * 1982-09-28 1984-05-08 Johnson Paul H Footwear having improved shock absorption
US4492046A (en) * 1983-06-01 1985-01-08 Ghenz Kosova Running shoe
US4592153A (en) * 1984-06-25 1986-06-03 Jacinto Jose Maria Heel construction
US4894933A (en) * 1985-02-26 1990-01-23 Kangaroos U.S.A., Inc. Cushioning and impact absorptive means for footwear
US4715130A (en) * 1985-09-20 1987-12-29 Alessandro Scatena Cushion system for shoes
US4638575A (en) * 1986-01-13 1987-01-27 Illustrato Vito J Spring heel for shoe and the like
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US4843737A (en) * 1987-10-13 1989-07-04 Vorderer Thomas W Energy return spring shoe construction
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US5138776A (en) * 1988-12-12 1992-08-18 Shalom Levin Sports shoe
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US5353525A (en) * 1989-02-14 1994-10-11 Vistek, Inc. Variable support shoe
US4910884A (en) * 1989-04-24 1990-03-27 Lindh Devere V Shoe sole incorporating spring apparatus
US5369896A (en) * 1989-05-24 1994-12-06 Fila Sport S.P.A. Sports shoe incorporating an elastic insert in the heel
US5068981A (en) * 1990-10-27 1991-12-03 In Soo Jung Self-ventilating device for a shoe insole
US5337492A (en) * 1990-11-07 1994-08-16 Adidas Ag Shoe bottom, in particular for sports shoes
US5502901A (en) * 1991-05-07 1996-04-02 Brown; Jeffrey W. Shock reducing footwear and method of manufacture
US5269081A (en) * 1992-05-01 1993-12-14 Gray Frank B Force monitoring shoe
US5282324A (en) * 1992-06-29 1994-02-01 Cheng Peter S C Valveless ventilating arrangement for a shoe and method
US5224278A (en) * 1992-09-18 1993-07-06 Jeon Pil D Midsole having a shock absorbing air bag
US5437110A (en) * 1993-02-04 1995-08-01 L.A. Gear, Inc. Adjustable shoe heel spring and stabilizer
US5860225A (en) * 1993-04-16 1999-01-19 Breeze Technology Self-ventilating footwear
US5343636A (en) * 1993-05-24 1994-09-06 Albert Sabol Added footwear to increase stride
US5560126A (en) * 1993-08-17 1996-10-01 Akeva, L.L.C. Athletic shoe with improved sole
US5596002A (en) * 1993-10-28 1997-01-21 Hoffmann-La Roche Inc. Method of treating chloroquine-resistant malaria with aminoquinoline derivatives
US5435079A (en) * 1993-12-20 1995-07-25 Gallegos; Alvaro Z. Spring athletic shoe
US5511324A (en) * 1994-04-01 1996-04-30 Smith; Roosevelt Shoe heel spring
US5513448A (en) * 1994-07-01 1996-05-07 Lyons; Levert Athletic shoe with compression indicators and replaceable spring cassette
US5517769A (en) * 1995-06-07 1996-05-21 Zhao; Yi Spring-loaded snap-type shoe
US5544431A (en) * 1995-06-16 1996-08-13 Dixon; Roy Shock absorbing shoe with adjustable insert
US5671552A (en) * 1995-07-18 1997-09-30 Pettibone; Virginia G. Atheletic shoe
US5651196A (en) * 1996-01-11 1997-07-29 Hsieh; Frank Highly elastic footwear sole
US5639074A (en) * 1996-03-05 1997-06-17 Smalley Steel Ring Co. Interlaced wave spring
US5649374A (en) * 1996-05-10 1997-07-22 Chou; Hsueh-Li Combined resilient sole of a shoe
US5706589A (en) * 1996-06-13 1998-01-13 Marc; Michel Energy managing shoe sole construction
US5896679A (en) * 1996-08-26 1999-04-27 Baldwin; Phillip Article of footwear
US5743028A (en) * 1996-10-03 1998-04-28 Lombardino; Thomas D. Spring-air shock absorbtion and energy return device for shoes
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US20140250728A1 (en) * 2013-03-08 2014-09-11 Nike, Inc. Footwear Fluid-Filled Chamber Having Central Tensile Feature
US20160316852A1 (en) * 2015-04-30 2016-11-03 Jing Zhao Heel Suspend Footbed With Pronation Adapting Mechanism
WO2019046485A1 (en) * 2017-08-29 2019-03-07 Spira, Inc. Spring cushioned shoe with encapsulated spring

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